text: "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.default = void 0;
  
  function _includes() {
    const data = _interopRequireDefault(require("lodash/includes"));
  
    _includes = function () {
      return data;
    };
  
    return data;
  }
  
  function _repeat() {
    const data = _interopRequireDefault(require("lodash/repeat"));
  
    _repeat = function () {
      return data;
    };
  
    return data;
  }
  
  var _renamer = _interopRequireDefault(require("./lib/renamer"));
  
  var _index = _interopRequireDefault(require("../index"));
  
  function _defaults() {
    const data = _interopRequireDefault(require("lodash/defaults"));
  
    _defaults = function () {
      return data;
    };
  
    return data;
  }
  
  var _binding = _interopRequireDefault(require("./binding"));
  
  function _globals() {
    const data = _interopRequireDefault(require("globals"));
  
    _globals = function () {
      return data;
    };
  
    return data;
  }
  
  function t() {
    const data = _interopRequireWildcard(require("@babel/types"));
  
    t = function () {
      return data;
    };
  
    return data;
  }
  
  var _cache = require("../cache");
  
  function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  function gatherNodeParts(node, parts) {
    if (t().isModuleDeclaration(node)) {
      if (node.source) {
        gatherNodeParts(node.source, parts);
      } else if (node.specifiers && node.specifiers.length) {
        for (const specifier of node.specifiers) {
          gatherNodeParts(specifier, parts);
        }
      } else if (node.declaration) {
        gatherNodeParts(node.declaration, parts);
      }
    } else if (t().isModuleSpecifier(node)) {
      gatherNodeParts(node.local, parts);
    } else if (t().isMemberExpression(node)) {
      gatherNodeParts(node.object, parts);
      gatherNodeParts(node.property, parts);
    } else if (t().isIdentifier(node)) {
      parts.push(node.name);
    } else if (t().isLiteral(node)) {
      parts.push(node.value);
    } else if (t().isCallExpression(node)) {
      gatherNodeParts(node.callee, parts);
    } else if (t().isObjectExpression(node) || t().isObjectPattern(node)) {
      for (const prop of node.properties) {
        gatherNodeParts(prop.key || prop.argument, parts);
      }
    } else if (t().isPrivateName(node)) {
      gatherNodeParts(node.id, parts);
    } else if (t().isThisExpression(node)) {
      parts.push("this");
    } else if (t().isSuper(node)) {
      parts.push("super");
    }
  }
  
  const collectorVisitor = {
    For(path) {
      for (const key of t().FOR_INIT_KEYS) {
        const declar = path.get(key);
  
        if (declar.isVar()) {
          const parentScope = path.scope.getFunctionParent() || path.scope.getProgramParent();
          parentScope.registerBinding("var", declar);
        }
      }
    },
  
    Declaration(path) {
      if (path.isBlockScoped()) return;
  
      if (path.isExportDeclaration() && path.get("declaration").isDeclaration()) {
        return;
      }
  
      const parent = path.scope.getFunctionParent() || path.scope.getProgramParent();
      parent.registerDeclaration(path);
    },
  
    ReferencedIdentifier(path, state) {
      state.references.push(path);
    },
  
    ForXStatement(path, state) {
      const left = path.get("left");
  
      if (left.isPattern() || left.isIdentifier()) {
        state.constantViolations.push(path);
      }
    },
  
    ExportDeclaration: {
      exit(path) {
        const {
          node,
          scope
        } = path;
        const declar = node.declaration;
  
        if (t().isClassDeclaration(declar) || t().isFunctionDeclaration(declar)) {
          const id = declar.id;
          if (!id) return;
          const binding = scope.getBinding(id.name);
          if (binding) binding.reference(path);
        } else if (t().isVariableDeclaration(declar)) {
          for (const decl of declar.declarations) {
            const ids = t().getBindingIdentifiers(decl);
  
            for (const name in ids) {
              const binding = scope.getBinding(name);
              if (binding) binding.reference(path);
            }
          }
        }
      }
  
    },
  
    LabeledStatement(path) {
      path.scope.getProgramParent().addGlobal(path.node);
      path.scope.getBlockParent().registerDeclaration(path);
    },
  
    AssignmentExpression(path, state) {
      state.assignments.push(path);
    },
  
    UpdateExpression(path, state) {
      state.constantViolations.push(path);
    },
  
    UnaryExpression(path, state) {
      if (path.node.operator === "delete") {
        state.constantViolations.push(path);
      }
    },
  
    BlockScoped(path) {
      let scope = path.scope;
      if (scope.path === path) scope = scope.parent;
      scope.getBlockParent().registerDeclaration(path);
    },
  
    ClassDeclaration(path) {
      const id = path.node.id;
      if (!id) return;
      const name = id.name;
      path.scope.bindings[name] = path.scope.getBinding(name);
    },
  
    Block(path) {
      const paths = path.get("body");
  
      for (const bodyPath of paths) {
        if (bodyPath.isFunctionDeclaration()) {
          path.scope.getBlockParent().registerDeclaration(bodyPath);
        }
      }
    }
  
  };
  let uid = 0;
  
  class Scope {
    constructor(path) {
      const {
        node
      } = path;
  
      const cached = _cache.scope.get(node);
  
      if (cached && cached.path === path) {
        return cached;
      }
  
      _cache.scope.set(node, this);
  
      this.uid = uid++;
      this.block = node;
      this.path = path;
      this.labels = new Map();
    }
  
    get parent() {
      const parent = this.path.findParent(p => p.isScope());
      return parent && parent.scope;
    }
  
    get parentBlock() {
      return this.path.parent;
    }
  
    get hub() {
      return this.path.hub;
    }
  
    traverse(node, opts, state) {
      (0, _index.default)(node, opts, this, state, this.path);
    }
  
    generateDeclaredUidIdentifier(name) {
      const id = this.generateUidIdentifier(name);
      this.push({
        id
      });
      return t().cloneNode(id);
    }
  
    generateUidIdentifier(name) {
      return t().identifier(this.generateUid(name));
    }
  
    generateUid(name = "temp") {
      name = t().toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");
      let uid;
      let i = 0;
  
      do {
        uid = this._generateUid(name, i);
        i++;
      } while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));
  
      const program = this.getProgramParent();
      program.references[uid] = true;
      program.uids[uid] = true;
      return uid;
    }
  
    _generateUid(name, i) {
      let id = name;
      if (i > 1) id += i;
      return `_${id}`;
    }
  
    generateUidBasedOnNode(parent, defaultName) {
      let node = parent;
  
      if (t().isAssignmentExpression(parent)) {
        node = parent.left;
      } else if (t().isVariableDeclarator(parent)) {
        node = parent.id;
      } else if (t().isObjectProperty(node) || t().isObjectMethod(node)) {
        node = node.key;
      }
  
      const parts = [];
      gatherNodeParts(node, parts);
      let id = parts.join("$");
      id = id.replace(/^_/, "") || defaultName || "ref";
      return this.generateUid(id.slice(0, 20));
    }
  
    generateUidIdentifierBasedOnNode(parent, defaultName) {
      return t().identifier(this.generateUidBasedOnNode(parent, defaultName));
    }
  
    isStatic(node) {
      if (t().isThisExpression(node) || t().isSuper(node)) {
        return true;
      }
  
      if (t().isIdentifier(node)) {
        const binding = this.getBinding(node.name);
  
        if (binding) {
          return binding.constant;
        } else {
          return this.hasBinding(node.name);
        }
      }
  
      return false;
    }
  
    maybeGenerateMemoised(node, dontPush) {
      if (this.isStatic(node)) {
        return null;
      } else {
        const id = this.generateUidIdentifierBasedOnNode(node);
  
        if (!dontPush) {
          this.push({
            id
          });
          return t().cloneNode(id);
        }
  
        return id;
      }
    }
  
    checkBlockScopedCollisions(local, kind, name, id) {
      if (kind === "param") return;
      if (local.kind === "local") return;
      if (kind === "hoisted" && local.kind === "let") return;
      const duplicate = kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" || local.kind === "param" && (kind === "let" || kind === "const");
  
      if (duplicate) {
        throw this.hub.file.buildCodeFrameError(id, `Duplicate declaration "${name}"`, TypeError);
      }
    }
  
    rename(oldName, newName, block) {
      const binding = this.getBinding(oldName);
  
      if (binding) {
        newName = newName || this.generateUidIdentifier(oldName).name;
        return new _renamer.default(binding, oldName, newName).rename(block);
      }
    }
  
    _renameFromMap(map, oldName, newName, value) {
      if (map[oldName]) {
        map[newName] = value;
        map[oldName] = null;
      }
    }
  
    dump() {
      const sep = (0, _repeat().default)("-", 60);
      console.log(sep);
      let scope = this;
  
      do {
        console.log("#", scope.block.type);
  
        for (const name in scope.bindings) {
          const binding = scope.bindings[name];
          console.log(" -", name, {
            constant: binding.constant,
            references: binding.references,
            violations: binding.constantViolations.length,
            kind: binding.kind
          });
        }
      } while (scope = scope.parent);
  
      console.log(sep);
    }
  
    toArray(node, i) {
      const file = this.hub.file;
  
      if (t().isIdentifier(node)) {
        const binding = this.getBinding(node.name);
  
        if (binding && binding.constant && binding.path.isGenericType("Array")) {
          return node;
        }
      }
  
      if (t().isArrayExpression(node)) {
        return node;
      }
  
      if (t().isIdentifier(node, {
        name: "arguments"
      })) {
        return t().callExpression(t().memberExpression(t().memberExpression(t().memberExpression(t().identifier("Array"), t().identifier("prototype")), t().identifier("slice")), t().identifier("call")), [node]);
      }
  
      let helperName;
      const args = [node];
  
      if (i === true) {
        helperName = "toConsumableArray";
      } else if (i) {
        args.push(t().numericLiteral(i));
        helperName = "slicedToArray";
      } else {
        helperName = "toArray";
      }
  
      return t().callExpression(file.addHelper(helperName), args);
    }
  
    hasLabel(name) {
      return !!this.getLabel(name);
    }
  
    getLabel(name) {
      return this.labels.get(name);
    }
  
    registerLabel(path) {
      this.labels.set(path.node.label.name, path);
    }
  
    registerDeclaration(path) {
      if (path.isLabeledStatement()) {
        this.registerLabel(path);
      } else if (path.isFunctionDeclaration()) {
        this.registerBinding("hoisted", path.get("id"), path);
      } else if (path.isVariableDeclaration()) {
        const declarations = path.get("declarations");
  
        for (const declar of declarations) {
          this.registerBinding(path.node.kind, declar);
        }
      } else if (path.isClassDeclaration()) {
        this.registerBinding("let", path);
      } else if (path.isImportDeclaration()) {
        const specifiers = path.get("specifiers");
  
        for (const specifier of specifiers) {
          this.registerBinding("module", specifier);
        }
      } else if (path.isExportDeclaration()) {
        const declar = path.get("declaration");
  
        if (declar.isClassDeclaration() || declar.isFunctionDeclaration() || declar.isVariableDeclaration()) {
          this.registerDeclaration(declar);
        }
      } else {
        this.registerBinding("unknown", path);
      }
    }
  
    buildUndefinedNode() {
      if (this.hasBinding("undefined")) {
        return t().unaryExpression("void", t().numericLiteral(0), true);
      } else {
        return t().identifier("undefined");
      }
    }
  
    registerConstantViolation(path) {
      const ids = path.getBindingIdentifiers();
  
      for (const name in ids) {
        const binding = this.getBinding(name);
        if (binding) binding.reassign(path);
      }
    }
  
    registerBinding(kind, path, bindingPath = path) {
      if (!kind) throw new ReferenceError("no `kind`");
  
      if (path.isVariableDeclaration()) {
        const declarators = path.get("declarations");
  
        for (const declar of declarators) {
          this.registerBinding(kind, declar);
        }
  
        return;
      }
  
      const parent = this.getProgramParent();
      const ids = path.getBindingIdentifiers(true);
  
      for (const name in ids) {
        for (const id of ids[name]) {
          const local = this.getOwnBinding(name);
  
          if (local) {
            if (local.identifier === id) continue;
            this.checkBlockScopedCollisions(local, kind, name, id);
          }
  
          parent.references[name] = true;
  
          if (local) {
            this.registerConstantViolation(bindingPath);
          } else {
            this.bindings[name] = new _binding.default({
              identifier: id,
              scope: this,
              path: bindingPath,
              kind: kind
            });
          }
        }
      }
    }
  
    addGlobal(node) {
      this.globals[node.name] = node;
    }
  
    hasUid(name) {
      let scope = this;
  
      do {
        if (scope.uids[name]) return true;
      } while (scope = scope.parent);
  
      return false;
    }
  
    hasGlobal(name) {
      let scope = this;
  
      do {
        if (scope.globals[name]) return true;
      } while (scope = scope.parent);
  
      return false;
    }
  
    hasReference(name) {
      let scope = this;
  
      do {
        if (scope.references[name]) return true;
      } while (scope = scope.parent);
  
      return false;
    }
  
    isPure(node, constantsOnly) {
      if (t().isIdentifier(node)) {
        const binding = this.getBinding(node.name);
        if (!binding) return false;
        if (constantsOnly) return binding.constant;
        return true;
      } else if (t().isClass(node)) {
        if (node.superClass && !this.isPure(node.superClass, constantsOnly)) {
          return false;
        }
  
        return this.isPure(node.body, constantsOnly);
      } else if (t().isClassBody(node)) {
        for (const method of node.body) {
          if (!this.isPure(method, constantsOnly)) return false;
        }
  
        return true;
      } else if (t().isBinary(node)) {
        return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
      } else if (t().isArrayExpression(node)) {
        for (const elem of node.elements) {
          if (!this.isPure(elem, constantsOnly)) return false;
        }
  
        return true;
      } else if (t().isObjectExpression(node)) {
        for (const prop of node.properties) {
          if (!this.isPure(prop, constantsOnly)) return false;
        }
  
        return true;
      } else if (t().isClassMethod(node)) {
        if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
        if (node.kind === "get" || node.kind === "set") return false;
        return true;
      } else if (t().isProperty(node)) {
        if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
        return this.isPure(node.value, constantsOnly);
      } else if (t().isUnaryExpression(node)) {
        return this.isPure(node.argument, constantsOnly);
      } else if (t().isTaggedTemplateExpression(node)) {
        return t().matchesPattern(node.tag, "String.raw") && !this.hasBinding("String", true) && this.isPure(node.quasi, constantsOnly);
      } else if (t().isTemplateLiteral(node)) {
        for (const expression of node.expressions) {
          if (!this.isPure(expression, constantsOnly)) return false;
        }
  
        return true;
      } else {
        return t().isPureish(node);
      }
    }
  
    setData(key, val) {
      return this.data[key] = val;
    }
  
    getData(key) {
      let scope = this;
  
      do {
        const data = scope.data[key];
        if (data != null) return data;
      } while (scope = scope.parent);
    }
  
    removeData(key) {
      let scope = this;
  
      do {
        const data = scope.data[key];
        if (data != null) scope.data[key] = null;
      } while (scope = scope.parent);
    }
  
    init() {
      if (!this.references) this.crawl();
    }
  
    crawl() {
      const path = this.path;
      this.references = Object.create(null);
      this.bindings = Object.create(null);
      this.globals = Object.create(null);
      this.uids = Object.create(null);
      this.data = Object.create(null);
  
      if (path.isLoop()) {
        for (const key of t().FOR_INIT_KEYS) {
          const node = path.get(key);
          if (node.isBlockScoped()) this.registerBinding(node.node.kind, node);
        }
      }
  
      if (path.isFunctionExpression() && path.has("id")) {
        if (!path.get("id").node[t().NOT_LOCAL_BINDING]) {
          this.registerBinding("local", path.get("id"), path);
        }
      }
  
      if (path.isClassExpression() && path.has("id")) {
        if (!path.get("id").node[t().NOT_LOCAL_BINDING]) {
          this.registerBinding("local", path);
        }
      }
  
      if (path.isFunction()) {
        const params = path.get("params");
  
        for (const param of params) {
          this.registerBinding("param", param);
        }
      }
  
      if (path.isCatchClause()) {
        this.registerBinding("let", path);
      }
  
      const parent = this.getProgramParent();
      if (parent.crawling) return;
      const state = {
        references: [],
        constantViolations: [],
        assignments: []
      };
      this.crawling = true;
      path.traverse(collectorVisitor, state);
      this.crawling = false;
  
      for (const path of state.assignments) {
        const ids = path.getBindingIdentifiers();
        let programParent;
  
        for (const name in ids) {
          if (path.scope.getBinding(name)) continue;
          programParent = programParent || path.scope.getProgramParent();
          programParent.addGlobal(ids[name]);
        }
  
        path.scope.registerConstantViolation(path);
      }
  
      for (const ref of state.references) {
        const binding = ref.scope.getBinding(ref.node.name);
  
        if (binding) {
          binding.reference(ref);
        } else {
          ref.scope.getProgramParent().addGlobal(ref.node);
        }
      }
  
      for (const path of state.constantViolations) {
        path.scope.registerConstantViolation(path);
      }
    }
  
    push(opts) {
      let path = this.path;
  
      if (!path.isBlockStatement() && !path.isProgram()) {
        path = this.getBlockParent().path;
      }
  
      if (path.isSwitchStatement()) {
        path = (this.getFunctionParent() || this.getProgramParent()).path;
      }
  
      if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
        path.ensureBlock();
        path = path.get("body");
      }
  
      const unique = opts.unique;
      const kind = opts.kind || "var";
      const blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
      const dataKey = `declaration:${kind}:${blockHoist}`;
      let declarPath = !unique && path.getData(dataKey);
  
      if (!declarPath) {
        const declar = t().variableDeclaration(kind, []);
        declar._blockHoist = blockHoist;
        [declarPath] = path.unshiftContainer("body", [declar]);
        if (!unique) path.setData(dataKey, declarPath);
      }
  
      const declarator = t().variableDeclarator(opts.id, opts.init);
      declarPath.node.declarations.push(declarator);
      this.registerBinding(kind, declarPath.get("declarations").pop());
    }
  
    getProgramParent() {
      let scope = this;
  
      do {
        if (scope.path.isProgram()) {
          return scope;
        }
      } while (scope = scope.parent);
  
      throw new Error("Couldn't find a Program");
    }
  
    getFunctionParent() {
      let scope = this;
  
      do {
        if (scope.path.isFunctionParent()) {
          return scope;
        }
      } while (scope = scope.parent);
  
      return null;
    }
  
    getBlockParent() {
      let scope = this;
  
      do {
        if (scope.path.isBlockParent()) {
          return scope;
        }
      } while (scope = scope.parent);
  
      throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
    }
  
    getAllBindings() {
      const ids = Object.create(null);
      let scope = this;
  
      do {
        (0, _defaults().default)(ids, scope.bindings);
        scope = scope.parent;
      } while (scope);
  
      return ids;
    }
  
    getAllBindingsOfKind() {
      const ids = Object.create(null);
  
      for (const kind of arguments) {
        let scope = this;
  
        do {
          for (const name in scope.bindings) {
            const binding = scope.bindings[name];
            if (binding.kind === kind) ids[name] = binding;
          }
  
          scope = scope.parent;
        } while (scope);
      }
  
      return ids;
    }
  
    bindingIdentifierEquals(name, node) {
      return this.getBindingIdentifier(name) === node;
    }
  
    getBinding(name) {
      let scope = this;
  
      do {
        const binding = scope.getOwnBinding(name);
        if (binding) return binding;
      } while (scope = scope.parent);
    }
  
    getOwnBinding(name) {
      return this.bindings[name];
    }
  
    getBindingIdentifier(name) {
      const info = this.getBinding(name);
      return info && info.identifier;
    }
  
    getOwnBindingIdentifier(name) {
      const binding = this.bindings[name];
      return binding && binding.identifier;
    }
  
    hasOwnBinding(name) {
      return !!this.getOwnBinding(name);
    }
  
    hasBinding(name, noGlobals) {
      if (!name) return false;
      if (this.hasOwnBinding(name)) return true;
      if (this.parentHasBinding(name, noGlobals)) return true;
      if (this.hasUid(name)) return true;
      if (!noGlobals && (0, _includes().default)(Scope.globals, name)) return true;
      if (!noGlobals && (0, _includes().default)(Scope.contextVariables, name)) return true;
      return false;
    }
  
    parentHasBinding(name, noGlobals) {
      return this.parent && this.parent.hasBinding(name, noGlobals);
    }
  
    moveBindingTo(name, scope) {
      const info = this.getBinding(name);
  
      if (info) {
        info.scope.removeOwnBinding(name);
        info.scope = scope;
        scope.bindings[name] = info;
      }
    }
  
    removeOwnBinding(name) {
      delete this.bindings[name];
    }
  
    removeBinding(name) {
      const info = this.getBinding(name);
  
      if (info) {
        info.scope.removeOwnBinding(name);
      }
  
      let scope = this;
  
      do {
        if (scope.uids[name]) {
          scope.uids[name] = false;
        }
      } while (scope = scope.parent);
    }
  
  }
  
  exports.default = Scope;
  Scope.globals = Object.keys(_globals().default.builtin);
  Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];